. "proto-orthodox Christian leaders" . "proto-orthodox" . "\\\"proto-orthodox\\\" position" . "orthodox Church" . "proto-orthodox Christian" . . "proto-Orthodoxy" . "Proto-orthodox Christianity" . "proto-orthodoxy" . "early Christians believed" . "proto-Orthodox" . "Proto-orthodox Christianity" . "proto-orthodox teaching" . "proto-Christians" . "formational period of orthodox" . "Proto-Orthodox Church" . "orthodox" . "early Catholicism" . "Proto-orthodox" . . "proto-orthodox churches" . "proto-orthodox Christians" . "proto-orthodox Church" . "Church" . . "proto-orthodox Christianity" .